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A155593 9^n+2^n-1^n. 18
1, 10, 84, 736, 6576, 59080, 531504, 4783096, 43046976, 387421000, 3486785424, 31381061656, 282429540576, 2541865836520, 22876792471344, 205891132127416, 1853020188917376, 16677181699797640, 150094635297261264 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

FORMULA

G.f.: 1/(1-9*x)+1/(1-2*x)-1/(1-x). E.g.f.: e^(9*x)+e^(2*x)-e^x.

a(n)=11*a(n-1)-18*a(n-2)-8 with a(0)=1, a(1)=10 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jul 21 2010]

CROSSREFS

A074501; A074600; A005057; A005056; A099393; A155588; A155590; A155592

Sequence in context: A090763 A016131 A027310 * A104128 A014341 A081903

Adjacent sequences:  A155590 A155591 A155592 * A155594 A155595 A155596

KEYWORD

nonn

AUTHOR

Mohammad K. Azarian (azarian(AT)evansville.edu), Jan 24 2009

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Last modified February 15 07:09 EST 2012. Contains 205695 sequences.